Molding.



J. w. RUSSEL.

MOLDING. APPLICATION man NOV. 5. 1914.

1,1 50,631 Patented Aug. 17, 1915.

4 SHEETS-SHEET 1.

E1273... EE E COLUMBIA PLANOGRAPH CCMWASHINGTON. D c.

J. W. RUSSEL.

MOLDING.

APPLICATION FILED NOV. 5. 1914.

1,150,631. Patented Aug. 17, 1915.

A II

4 SHEETS-SHEET 2.

COLUMBIA FLANOGRAPH cO..wAsHlNGToN. n. c.

J. W. RUSSEL.

' MOLDING.

APPLlCATlON FILED NOV- 5. 1.914.

Patented Aug. 17, 1915.

4 SHEETS-SHEET 3- coLuzvmlA PLANDGRAPH 50., WASHINGTON, D. c

J. W. RUSSEL.

MOLDING.

APPLICATlON FILED NOV. 5, 1914..

1,150,631. Patented Aug. 17, 1915.

4 SHEETS-SHEET 4.

.EUBBEL- COLUMBIA PLANUURAPH cm. WASHINGTON. D. c.

rarnrrr curios.

MOLDING.

Specification of Letters Patent.

Patented Aug. 187, 1915.

Application filed November 5, 191 Serial No. 870,342.

To all whom it may concern Be it known that I, JOHN W. RUssEL, a citizen of the United States, residing at Marietta, in the county of Lancaster and State of Pennsylvania, have invented new and useful Improvements in Molding, of which the following is a specification.

This invention relates to improvements in casting and more particularly to a process for molding iron water closets.

It is the object of this invention to in troduce in the production of castings of irregular t per ng te m pa t ul r y ater closet hoppers, the application of jolting or jarring machines in the formation of the molds, which have heretofore been made by hand, and the particular construction and operation of the apparatus used in conneo, tion therewith.

Molds for such castings have been formed by machines using separate. patterns in forming the cores and cheeks and in closing the flask determining the thickness of the casting. In carrying out this invention a single pattern is employed, the inside to.

form the core and the outside to form the cheek, both of which are formed upon a jolting or jarring machine. The resulting advantages are that skilled molders are not required, the cost of production decreased and the output greatly increased. The lines of the casting are maintained, the casting is lighter, and the shape lightness of the articles made in this manner are uniform.

While the preferred forms of apparatus for carrying out this invention are illustrated upon the accompanying sheets of drawing yet it is to be understood that minor detail changes may be made without departing from the scope thereof.

Figure 1 is a view in side elevation of a water closet hopper made in accordance with this in ent o Fig 2 is a WP P n iew Q e flush g ing of jthia loeet- L -gd a detai View in l ng tudi a nt c ls c fon taken through the top of hopper with the flushing ring in place. .Fig. t is a view in l ngit nal ver ical e tion thr ug t center of the pattern for forming the core and cheek- F g-f is a Vi i end e ev tion illustrating the core and its support p n a jolt ng '0 ja ng ma h n F g- 5'?- s a f gmentary se i al iew take through the upper righthund corner of i g-fi s a sim l r view ill trat n the d w n of th pa tern fro t e s r Fig. 7 is a view in side elevation of the core. Fig. 8 is a view in end elevation, pa tly In section illustrating the cheek flask and pattern upon a jolting or jarring machine. Fig. 9 is a side elevation and a bottom plan view of the bottom flange forming pattern. Fig. 10 is a view in side elevation, partly in section, illustrating the flask and cheek drawn from the pattern. Fig. 11 is a V ew in side and end elevation of the spud forming core. Fig. 12 is a view in side elevatlon partly in section of the cope flask and pattern. Fi g. 13 is a view in side elevation, partly in section, illustrating the mold ready for casting. Fig. let is transverse section view through'the center of the flushing ring pattern. Fig. 15 is a bottom plan vlew of the cope and Fig. 16 a top plan view of the drag of the flushing ring formlng mold. Fig.1? is a top plan view and Fig. 18 a transverse sectional View of the ring core forming flask. Fig. 19 is a transverse section view through the flushing ring mold illustrating the ring core in position.

The water closet produced by the following means comprises a hopper 1 having an oval top with an outstanding flange 2 upon which is secured a flushing ring 3 having a depending curved wall 4, and when desired an extension for seat lugs. The sides of the hopper taper in curved lines from the oval top "to a circular bottom opening the center of which is at therear of the center of the top and is provided about the lower circular portion with an outstanding flange 5 about the bottom and with a spud 6 at the rear under the top flange, the'flushing ring having a flap 7 depending from the curved wall extending below the spud opening.

The core and cheek of the mold for casting the hopper are formed from the same pattern 10 preferably made of aluminum and carriedupon a flat plate 11 integral therewith. The inside of the pattern is employed in forming the core of the hopper 1 and therefore corresponds exactly to the interior of the hopper. The outside of the pattern is employed in forming the cheek of themold for'the hopper and therefore the walls of the pattern must be of uniform thickness throughout, the thickness of the pattern plate 11 relatively determining the thickness of the casting. The projections 12 about the exterior ofthe pattern upon the pattern plate form the flange 2 of the hopper. 1 The spud forming projection 13 on the pattern is filled flush with the adjacent interior walls by a core 14 for purposes hereinafter described. A shoulder 15 is formed upon the exterior of the pattern adjacent the extremity of the circular end portion for a purpose to be described later.

To form the core of the hopper a pattern stand 20 is clamped upon the platform 21 of a jolting or jarring machine, the pattern 10 inserted therein and the pattern plate 11 clamped to the upper member thereof. A drag flask 22, of greater inner dimensions than the pattern opening, is placed upon the pattern plate and detachably secured thereto. The pattern plate 11 is of greater outer dimensionsthan the drag 22 and on opposite sides a sleeve 23 is detachably secured upon the upper side of the plate each sleeve housing a reciprocable bolt 24 adapted to engage the upper side of the drag flange and be held in place by a set screw. The sleeve may be attached on either the top or bottom surface of the pattern plate 11 by screw-threaded bolts 23 passing through ears 23 on each side of the sleeve and engaging in screw-threaded apertures provided therefor passing through the plate, as shown on Fig. 5 Guide pins 25 are inserted through apertures therefore in the drag flange, pattern plate and stand at points intermediate the two drag securing bolts 24. The pattern and drag are filled with molding sand and the jolting or jarring machine operated to ram the core in the usual manner.

A base board 26 is placed over the drag, the pattern plate unclamped from the stand, the pattern lifted from the stand and placed in inverted position upon a pattern drawing machine 27 having two pairs of lifting rods 28 adapted to engage the pattern plate on each side of the bolt sleeves 23 to draw the pattern from the core 29. The drag with its projecting core is then removed to a convenient place to receive the cope and flask.

To form the checks of the hopper mold the pattern 10 in its inverted position is placed upon the platform 21 of the jolting or jarring machine and the pattern plate 11 clamped thereto, the sleeve 24 having been detached and secured upon the now upper side of the pattern plate. A flask 30 of less height than the height of the pattern is placed thereover and secured by the bolts 24 engaging the flask flange. The flask is moistened, filled with molding sand and the jolting or jarring machine operated to ram the cheek. The top of the flask is level and a flange forming ring pattern 31, corresponding in diameter to the hopper flange 5, is placed over the projecting end of the pattern and impressed into the sand until an internal shoulder 32 thereon engages the shoulder 15 on the hopper pattern 10. This ring pattern has a depending flange about its inner circumference which engages the walls of the hopper pattern and the position 'of the hopper pattern shoulder 15 limits the the bolts 24 released. The top flanges of the flask 30 are engaged by the grapples 33 of a traveling crane, which lifts the flask 30 over the guide rods 34 anddraws the check 35. A spud core 36 is placed upon the drag in contact with the core 29, the cheek carrying flask 3O lowered thereover, and the contiguous flanges of drag and flask clamped together. i

The cope forming the bottom of the hopper flange 5 and lower end of the hopper is formed from a suitable pattern 33 and rammed upon a jolting or jarring machine 39, inverted upon the top of the cheek flask and clamped thereto. Proper pouring holes and air vents being found in the cope, the mold is ready for casting.

In a days run a number of molds are used. Thedrag, cope and cheek flasks are all made uniform and interchangeable with their meeting edges ground so that as the same pattern is employed all of the castings are uniform.

To cast the flushing ring 3, which comprises a flat annular surface with an interior depending wall or flange 4 nearly semicircular in cross-section, a two-part flask vided with a raised pattern 45 which will 7 produce an outer shouldered wal146. of the ring core recesswith an additional raise 47 and depression 48 which produce the upper flat surface 49 and top 49 of the curved flange respectively for the flushing ring, and when seat lugs are desired said depression is extended as indicated by the dotted lines 48*.

The green sand ring core 50 is formed in a two part metal mold having an inclined outer wall 51, the interior of which corresponds to *the wall 46 of' the recess in the drag, the inner walls are curved upward from the flat bottom to correspondwith the interior curve of the flushing ring flange and is divided in half so that the upper part 52 may bedetached from the bottom 53. A

metal anchor 54 issupported by hand holds cheek over the core upon the drag,

inverted and placed in the drag, placed in position, the mold is ready ring.

What I claim is:

l. A process of making a mold for an irregularly tapering hollow body employing a pattern plate having an opening therethrough with a hollow pattern projecting from one side of the plate about the opening, the inside of the pattern corresponding to the inside of the body, supporting the pattern upon a jolting machine, placing a drag flask upon the pattern plate, forming the core and drag within the pattern and flask, inverting the drag flask and pattern, drawing the pattern, supporting the inverted pattern within a flask upon a jolting machine, forming the cheek about the exterior of the pattern within the flask, drawing the flask and cheek and placing the cheek over the core upon the drag.

2. A process of making a mold for a water closet hopper having an outstanding flange adjacent its lower end employing a combined hollow core and cheek pattern the inside of which corresponds to the inside of the hopper, which consists in supporting the pattern upon a jolting machine, placing a drag flask upon the pattern, forming the core and drag within the pattern and drag flask, inverting the pattern and drag flask, drawing the pattern, supporting the inverted pattern upon a jolting machine within a flask, forming the cheek about the pattern within the flask, placing a ring pattern of the dimensions of the flange about the projecting end of the first named pattern, impressing the ring into the top of the cheek, removing the ring, drawing the flask and cheek from the pattern, placing the forming a cope within a flask upon a jolting machine from a pattern corresponding to the extethe cope as shown in Fig. 19, and for casting the flushing Copies of this patent may be obtained for five cents each, by addressing the rior of the bottom of the flange and lower end of the hopper, and placing the cope upon the top of the cheek.

3. The process of making a mold for a water closet having an outstanding flange adjacent the lower end of the hopper and a flushing ring with the inner semi-circular walls depending within the top of the hopper employing a combined hollow hopper core and cheek pattern the inside of which corresponds to the inside of the hopper, which consists in forming the drag and core from the pattern upon a jolting machine, forming the cheek in a flask about the pattern upon a jolting machine, forming a depression in the top of the cheek corresponding to the hopper flange by impressing and removing a ring pattern, forming the cope upon a jolting machine from a pattern corresponding to the exterior of the bottom of the flange and lower end of the hopper, and forming a flushing ring cope with a de pending projection corresponding to the interior of the lower half of the semi-circular flushing ring, and forming a flushing ring drag with a ring core receiving depression with a further depression corresponding to the top of the flushing ring and an inner projection continuing upward therefrom corresponding to the upper half of the semicircular interior of the flushing ring wall, and forming a flushing ring core of green sand having an embedded anchor with the bottom and inner surfaces of said ring core corresponding to the under side and continued exterior surfaces of the flushing ring and depending semi-circular wall thereof, and placing the ring core within the recess therefor in the drag.

JOHN W. RUSSEL.

Witnesses:

MARY M. TRUITT, E. MAUDE LEHMAN.

Commissioner of Patents,

Washington, D. C. 

